Us Navy Abbreviations and Acronyms

1. LS
   Logistic Specialist
2. LSO
   Landing Signal Officer
3. LT
   Lieutenant
4. LTJG
   Lieutenant, Junior Grade
5. MAA
   Master-At-Arms
6. MALS
   Marine Aviation Logistics Squadron
7. MCDN
   Marine Corps Data Network
8. MCO
   Material Control Officer
9. MCPO
   Master Chief Petty Officer
10. MCPON
    Master Chief Petty Officer of The Navy
11. MFWIC
    Mother Fucker What'S In Charge
12. MID
    Midshipman
13. MIDN
    Midshipman
14. MIDRATS
    Midnight Rations
15. MM
    Machinist's Mate
16. MMCO
    Maintenance/Material Control Officer
17. MMCPO
    Maintenance Master Chief Petty Officer
18. MO
    Maintenance Officer
19. MOA
    Memorandum of Agreement
20. MPA
    Main Propulsion Assistant

Last updated: May 24, 2020 — Total entries: 579